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You searched for: subject:"Grapefruit--Diseases and pests--Control."
[texts]Control of heavy infestations of purple scales on grapefruit trees - United States.: Bureau of Entomology and Plant Quarantine
Keywords: Purple scale--Control; Grapefruit--Diseases and pests--Control
Downloads: 30
[texts]Control of purple scales, whiteflies, and citrus red mites on grapefruit trees with phosphorus insecticides (Volume no.33-30) - Spencer, Herbert
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Keywords: Grapefruit Diseases and pests Control; Lepidosaphes beckii Control; Citrus whitefly Control; Citrus red mite Control
Downloads: 21
[texts]Sec. 301.64b administrative instructions relating to the Mexican fruitfly quarantine, requiring sterilization of all grapefruit harvested on and after April 12, 1939, and extending the harvesting season on grapefruit to the close of May 15, 1939 - United States.: Bureau of Entomology and Plant Quarantine
Keywords: Mexican fruit-fly--Control--United States; Grapefruit--Harvesting time--United States; Grapefruit--Diseases and pests--Control--United States
Downloads: 25
[texts]Requirements under Mexican fruitfly regulations modified--sterilization of grapefruit required - United States.: Bureau of Entomology and Plant Quarantine
Keywords: Plant quarantine--Law and legislation--United States; Mexican fruit-fly--Control--Law and legislation--United States; Grapefruit--Diseases and pests--Control--Texas
Downloads: 34
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